IES - LIGHTING HDBK ERRATA
Lighting Handbook Reference & Application
|Publication Date:||11 April 2005|
The Illuminating Engineering Society was founded in 1906, but it was not until 1947 that the first edition of the Handbook appeared, thus representing the accumulation of 41 years of lighting progress since the Society's founding. In each subsequent edition, IESNA has provided information on an ever-broadening range of technologies, procedures, and design issues. In the ninth edition, the editorial team has continued the trend of securing knowledge on all phases of lighting from IESNA committees and individual experts to ensure that this Handbook is the lighting reference source for the beginning of the next century.
The emphasis in the ninth edition is on quality. Previous editions have discussed important criteria for assessing and designing the visual environment, but a formal system for considering these issues had not been developed. IESNA has, however, always recommended quantity of light for specific applications or visual tasks. As a result, many practitioners often mistook the IESNA system of recommended illuminances (quantity) as the primary, or even the sole criterion, for lighting design. This Handbook introduces a new, formal system of addressing quality issues in the Lighting Design Guide in Chapter 10, Quality of the Visual Environment.
There are changes, too, in the illluminance categories, reduced from nine to seven and organized into three sets of visual tasks (simple, common, and special). Every application in the Lighting Design Guide has a specific (single number) recommended illuminance representing best practice for a typical application.
Through the Lighting Design Guide and other information in Chapter 10, IESNA is recognizing and emphasizing that illuminance is not the sole lighting design criterion. Other criteria may be more important, and, given the complexity and diversity of design goals for a specific application, the designer now has the opportunity to evaluate among the quantity and quality choices. This approach has been described as "a bridge to the 21st century," when it is expected that the tenth edition of the Handbook will provide a more precise method of measuring quality factors and their impact on the visual environment.
Other chapters in the book are new, or have been rewritten or updated. There are new application chapters on outdoor lighting, security lighting, parking facilities, retail, shopping mall and industrial lighting, and significant revisions to chapters on measurement of light, vision and perception, photobiology, aviation, and transportation.
This Handbook could not have been produced without the IESNA committees and individual specialists, those willing volunteers who give countless hours to the process of sharing their expertise. The Society thanks each and every contributor.
The professional editorial team brought talent and discipline to the project. Dr. Mark Rea, Judith Block, John Bullough, and Mariana Figueiro of Rensselaer Polytechnic Institute together with four Topic Editors, Michael Ouellette, David DiLaura, Roger Knott, and Nancy Clanton, have earned our appreciation for their contributions in evaluating, editing and, when necessary, developing material.
The IESNA Lighting Handbook represents the most important reference document in the lighting profession. It is one means by which the Society accomplishes its mission: to advance knowledge and disseminate information for the improvement of the lighted environment to the benefit of society. We hope that, you, the reader, will find the ninth edition your principal reference source for lighting information.